Question
Let P={10,20,30} and Q={5,10,15,20}. Which one of the following functions is one – one and not onto?
Options :
f={(10,5),(10,10),(10,15),(10,20)}
f={(10,5),(20,10),(30,15)}
f={(20,5),(20,10),(30,10)}
f={(10,5),(10,10),(20,15),(30,20)}
Answer :
f={(10,5),(20,10),(30,15)}
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